drivers/gpu/drm/sti/sti_mixer.c:145:47: sparse: sparse: incorrect type in argument 1 (different address spaces)
From: kernel test robot
Date: Sat Oct 05 2024 - 03:37:11 EST
Hi Ville,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 27cc6fdf720183dce1dbd293483ec5a9cb6b595e
commit: 74bde7581df3e18061119e1b27b63d0a9ea57b7a drm/sti: Allow build with COMPILE_TEST=y
date: 4 months ago
config: sh-randconfig-r111-20241004 (https://download.01.org/0day-ci/archive/20241005/202410051504.tmcbQl23-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 14.1.0
reproduce: (https://download.01.org/0day-ci/archive/20241005/202410051504.tmcbQl23-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410051504.tmcbQl23-lkp@xxxxxxxxx/
sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/sti/sti_mixer.c:145:47: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void * @@
drivers/gpu/drm/sti/sti_mixer.c:145:47: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/gpu/drm/sti/sti_mixer.c:145:47: sparse: got void *
drivers/gpu/drm/sti/sti_mixer.c:168:38: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void *addr @@ got void [noderef] __iomem * @@
drivers/gpu/drm/sti/sti_mixer.c:168:38: sparse: expected void *addr
drivers/gpu/drm/sti/sti_mixer.c:168:38: sparse: got void [noderef] __iomem *
vim +145 drivers/gpu/drm/sti/sti_mixer.c
a5f81078a56c6a Vincent Abriou 2016-02-04 139
a5f81078a56c6a Vincent Abriou 2016-02-04 140 static void mixer_dbg_mxn(struct seq_file *s, void *addr)
a5f81078a56c6a Vincent Abriou 2016-02-04 141 {
a5f81078a56c6a Vincent Abriou 2016-02-04 142 int i;
a5f81078a56c6a Vincent Abriou 2016-02-04 143
a5f81078a56c6a Vincent Abriou 2016-02-04 144 for (i = 1; i < 8; i++)
a5f81078a56c6a Vincent Abriou 2016-02-04 @145 seq_printf(s, "-0x%08X", (int)readl(addr + i * 4));
a5f81078a56c6a Vincent Abriou 2016-02-04 146 }
a5f81078a56c6a Vincent Abriou 2016-02-04 147
:::::: The code at line 145 was first introduced by commit
:::::: a5f81078a56c6ab57b7db2402ac64c34338004c5 drm/sti: add debugfs entries for MIXER crtc
:::::: TO: Vincent Abriou <vincent.abriou@xxxxxx>
:::::: CC: Vincent Abriou <vincent.abriou@xxxxxx>
--
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https://github.com/intel/lkp-tests/wiki